An optical disk apparatus is disclosed which makes accesses on a block-by-block basis to an optical disk having a recording track segmented into first recording areas by first address information correlated with wobbling information of the recording track, the block being a unit for error correction consisting of a plurality of the first recording areas. The optical disk apparatus comprises an access control unit which, when an access is made to a second recording area consisting of a plurality of the first recording areas, provides access control in sequence without applying any data modulation and/or demodulation process to each of the plurality of first recording areas constituting the second recording area.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method comprising: receiving a request to record a block of data in a program region of an optical disk, the optical disk comprising a recording track that is divisible into segments and that includes a testing region and the program region, each segment being sized to correlate with a wobble of the recording track, and the block being sized to correlate with a unit for executing error correction; recording, based on receiving the request, a testing signal within a segment-sized partition of the testing region without encoding the testing signal; accessing the recorded testing signal without decoding the testing signal; and determining an optimum power control value based on accessing the recorded testing signal.
2. The method of claim 1 , wherein the partition is smaller than the block.
3. The method of claim 1 , wherein the segment is an Absolute Time In Pregroove (ATIP) segment, and wherein the wobble is an ATIP wobble.
4. The method of claim 1 , wherein the block is sized to correlate with an Error Correction Code (ECC) block.
5. The method of claim 1 , wherein request to record the data further comprises a request to record the data in a logical format of a high-density recording mode that is higher in recording density than a standard recording mode.
6. The method of claim 1 , wherein the optical disk is a compact disc, and wherein the request to record the data further comprises a request to record the data in a digital versatile disk (DVD) format.
7. The method of claim 1 , further comprising logically segmenting the recording track into segments.
8. The method of claim 1 , wherein the recording track further includes a counting region, and wherein the counting region and the testing region comprise a power calibration area of the optical disk.
9. The method of claim 1 , wherein the segment comprises a 4 kilobyte segment, and wherein the block comprises a 32 kilobyte segment.
10. The method of claim 1 , wherein the testing area is divisible into 100 segment-sized partitions.
11. The method of claim 1 , further comprising recording the block of data in the program region based on determining the optimum power control value.
12. A device comprising: an interface unit configured to receive a request to record a block of data in a program region of an optical disk, the optical disk comprising a recording track that is divisible into segments and that includes a testing region and the program region, each segment being sized to correlate with a wobble of the recording track, and the block being sized to correlate with a unit for executing error correction; a laser output controlling circuit configured to record, based on receiving the request, a testing signal within a segment-sized partition of the testing region without encoding the testing signal; and a processor configured to: access the recorded testing signal without decoding the testing signal, and determine an optimum power control based on accessing the recorded testing signal.
13. A computer program product, tangibly embodied in a machine-readable medium, the computer program product comprising instructions that, when read by a machine, operate to cause a data processing apparatus to: receive a request to record a block of data in a program region of an optical disk, the optical disk comprising a recording track that is divisible into segments and that includes a testing region and the program region, each segment being sized to correlate with a wobble of the recording track, and the block being sized to correlate with a unit for executing error correction; record, based on receiving the request, a testing signal within a segment-sized partition of the testing region without encoding the testing signal; access the recorded testing signal without decoding the testing signal; and determine an optimum power control based on accessing the recorded testing signal.
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April 29, 2004
December 4, 2007
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